CN106284793A - A kind of for assembled roof of transformer substation face and construction method thereof - Google Patents

A kind of for assembled roof of transformer substation face and construction method thereof Download PDF

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Publication number
CN106284793A
CN106284793A CN201610755020.9A CN201610755020A CN106284793A CN 106284793 A CN106284793 A CN 106284793A CN 201610755020 A CN201610755020 A CN 201610755020A CN 106284793 A CN106284793 A CN 106284793A
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CN
China
Prior art keywords
transformer substation
layer
steel
profiled sheet
assembled roof
Prior art date
Application number
CN201610755020.9A
Other languages
Chinese (zh)
Inventor
段梦诺
刘培帅
赵祥霞
薛健
刘树勇
毛华
Original Assignee
国网天津市电力公司
国家电网公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 国网天津市电力公司, 国家电网公司 filed Critical 国网天津市电力公司
Priority to CN201610755020.9A priority Critical patent/CN106284793A/en
Publication of CN106284793A publication Critical patent/CN106284793A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00Roofs; Roof construction with regard to insulation
    • E04B7/02Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/35Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
    • E04D3/352Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material at least one insulating layer being located between non-insulating layers, e.g. double skin slabs or sheets

Abstract

The invention discloses a kind of for assembled roof of transformer substation face and construction method thereof.Wherein, include the most successively for assembled roof of transformer substation face: grid structure, rack rest, section steel beam, bottom profiled sheet, sandwich of layers, built-in fitting and overlaminate shape steel plate.Construction method, for first to build installation at high altitude platform, assembles each parts the most successively, completes to lay.The present invention is assembled deck structure for assembled roof of transformer substation face, and sandwich of layers is foam concrete, can concentrate replacement heat insulation layer, fireprotection layer, waterproof layer and noise reduction layer, and globality is strong, it is not necessary to material is levelling/look for slope, and multiple functional;Total material is light, structural strength is high, easy construction, can bear the weight of people, can meet the fire safety rules requirement of transformer station;It addition, the technique of the present invention is simple, cost is low, gets final product globality sheet material customized, it is possible to cast-in-place existing paving, is suitable for popularization and application in assembled roof of transformer substation face and a new generation's construction of transformer substation technology.

Description

A kind of for assembled roof of transformer substation face and construction method thereof

Technical field

The invention belongs to building roof surface technology field, for assembled roof of transformer substation face and execute particularly to one Work method.

Background technology

According to " Code for fire protection design of buildings " (GB50016-2014) and " fire water-supply and hydrant system technical specification " (GB50974-2014) regulation, the newly-built transformer station of cold district (area such as Jing-jin-ji region including China) should arrange roof water Between case, other areas also recommend to arrange between roof tank.

The main body of assembled transformer station is steel construction, and the assembled roof of transformer substation face structure that present stage carries out mainly has existing Water reinforced concrete structure, the color material such as steel class composite plate and battenboard.Wherein, monolithic reinforced concrete structure and conventional frame Construction roof panel is consistent, but affects agent structure form, it is impossible to embodies assembled transformer station and simplifies operation, reduction of erection time, essence The core objective of spy's industry;Color steel class composite plate and sandwich construction is many is made up of monolayer or double-layer thin wall steel plate, relies on roof Face purlin supports, the insulating plate structure such as interior sandwiched rock wool, glass silk flosssilk wadding, although this kind of structure lightweight, but people can not be gone up, glass fiber The material neither environment friendly convenient such as cotton, the most uneconomical safety, and durability, water proofing property, fire line are poor.Additionally, above-mentioned three kinds of knots Structure is intended to arrange the multiple structures such as heat-insulation layer, waterproof layer, sealing coat (vapour barrier) and protective layer, and working procedure is complicated, globality Poor.

Summary of the invention

It is an object of the invention to provide a kind of for assembled roof of transformer substation face and construction method thereof.

To this end, technical solution of the present invention is as follows:

A kind of for assembled roof of transformer substation face, it includes the most successively: grid structure, rack rest layer, type Girder steel, bottom profiled sheet layer, sandwich of layers, built-in fitting and overlaminate shape steel plate;

Wherein, grid structure is the flat board network of some elementary cells arrangement, and elementary cell is by six roots of sensation string The hexagonal pyramid that bar and 4 nodes are constituted, the arrangement mode of described elementary cell is positive and negative alternate arrangement;

Rack rest layer is assembled by the rack rest of multiple differing heights, is arranged on the node of the upper end of grid structure On, and for deck look for slope component;

Section steel beam is arranged on the upper end of rack rest layer, including steel main beam and shaped steel secondary beam;

Bottom profiled sheet layer is arranged on the upper end of section steel beam, is made up of polylith bottom profiled sheet, and sandwich of layers is arranged on The upper end of bottom profiled sheet layer, overlaminate shape steel plate is arranged on the upper end of sandwich of layers, at sandwich of layers and overlaminate shape steel plate Junction is provided with built-in fitting.

Preferably, node is bolted spherical node;

Section steel beam is channel-section steel or I-steel is welded;

Bottom profiled sheet is ribbed plate, and thickness is 0.8-1.0mm;

The thickness of overlaminate shape steel plate is 0.5-1.0mm.

Preferably, side steel plate or the steel fabric sheet of bottom profiled sheet layer and overlaminate shape steel plate is closed.

Preferably, the upper end at overlaminate shape steel plate is provided with protective layer;

Preferably, the composition of sandwich of layers is foam concrete, and raw material is cement and foaming agent, comprcssive strength 0.5-15MPa; Heat conductivity is between 0.08-0.3w/ (m K);Sound absorbing power 0.09-0.19%.

A kind of as described in the present invention for the construction method in assembled roof of transformer substation face, comprise the steps:

1) installation at high altitude platform is assembled;

2) grid structure and rack rest layer are installed on installation at high altitude platform, according to the slope requirement of design, on-the-spot system Make and regulate the construction height of each rack rest;

3) arranged type girder steel, is directly welded to connect steel main beam and shaped steel secondary beam;

4) installing bottom layer profiled sheet layer on section steel beam, piece overlap joint between adjacent bottom profiled sheet;

5) side steel plate or the steel fabric sheet of bottom profiled sheet layer closes, and welds built-in fitting at bottom profiled sheet;

6) concrete use is pumped into the end face of bottom profiled sheet layer, and natural curing molding, forms sandwich of layers;

7) the overlaminate shape steel plate of connection built-in fitting is laid;

8) protective layer is directly laid at overlaminate shape steel plate.

Preferably, step 2) in bolts between grid structure and rack rest.

Preferably, step 6) described concrete with after being pumped into 24 hours, under field conditions (factors) watering maintenance 7 days with On.

Preferably, cutting expansion joint according to field demand, expansion joint position is wrong with the piece position of bottom profiled sheet layer Open, and embedding sealing cream in expansion joint.

Compared with prior art, what the present invention provided is assembled deck structure for assembled roof of transformer substation face, Sandwich of layers is foam concrete, can concentrate replacement heat insulation layer, fireprotection layer, waterproof layer and noise reduction layer, and globality is strong, it is not necessary to Material is levelling/look for slope, and multiple functional;Total material is light, structural strength is high, easy construction, can bear the weight of people, energy Meet the fire safety rules requirement of transformer station;It addition, the technique of the present invention is simple, cost is low, gets final product globality sheet material customized, it is possible to Cast-in-place existing paving, is suitable for popularization and application in assembled roof of transformer substation face and a new generation's construction of transformer substation technology.

The construction method for assembled roof of transformer substation face of the present invention uses the construction of three-step-march monoblock type, convenient fast Victory, that reduces on-the-spot scaffold builds face;Can effective reduction of erection time, meet the requirement for deck of the assembled transformer station.

Accompanying drawing explanation

Fig. 1 is the structural representation for assembled roof of transformer substation face of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawings and specific embodiment the present invention is described further, but following embodiment is absolutely not to this Bright have any restriction.

Include the most successively as it is shown in figure 1, this is used for assembled roof of transformer substation face: grid structure 1, rack rest Layer 2, section steel beam 3, bottom profiled sheet layer, sandwich of layers 5, built-in fitting 6 and overlaminate shape steel plate 7;

Wherein, grid structure 1 is the flat board network of some elementary cells arrangement, and elementary cell is by six roots of sensation string The hexagonal pyramid that bar and 4 nodes are constituted, the arrangement mode of described elementary cell is positive and negative alternate arrangement;Grid structure 1 is room The main force structure of top panel.

Rack rest layer 2 is assembled by the rack rest of multiple differing heights, is arranged on the joint of the upper end of grid structure 1 On point, and for deck look for slope component.When grid structure 1 installs rack rest, the main draining considering deck, room End face uses domatic form, so regulates according to the height of rack rest layer 2, controls gradient size, specific as follows:

Gradient coefficient i=H/L*1/2,

For example, assuming that accessible roof structure looks for slope gradient coefficient i=3%, roofing span length L=10m, look for surrounding centre Slope, value of slope h0=10/2*3%=0.15m, the i.e. peak of rack rest layer 2 are h with the difference in height of minimum point0=150mm, According to setting the minimum point height of known rack rest layer 2 as h, produce each different nodes according to linear interpolation at the scene The rack rest of height, if 1 span of layouting is l1, layout 2 for l2..., the n that layouts is ln, according to linear interpolation formula, respectively The rack rest height layouted is respectively h+H/l1* 1/2, h+H/l2* 1/2 ..., h+H/ln* 1/2, the most real Can be according to designing the setting that requires to layout at a certain distance when executing assembly, height and position of layouting according to rack rest realize roof Face is the form of the gradient.

The purpose of this design is to consider the draining of deck and meet the weight capacity that upper people requires, controls the big of the gradient Little.

Section steel beam 3 is arranged on the upper end of rack rest layer 2, including steel main beam and shaped steel secondary beam;According to deck stress Require arranged type girder steel 3, and will be connected with between rack rest 2 and grid structure 1.

Bottom profiled sheet layer 4 is arranged on the upper end of section steel beam 3, is made up of polylith bottom profiled sheet, and sandwich of layers 5 is arranged In the upper end of bottom profiled sheet layer 4, overlaminate shape steel plate 7 is arranged on the upper end of sandwich of layers 5, at sandwich of layers and overlaminate shaped steel The junction of plate 7 is provided with built-in fitting 6.Built-in fitting 6 is preferably setscrew, in order to reinforcing clip central layer 5 and overlaminate shape steel plate 7 Connect, improve the overall performance of deck.

Node is bolted spherical node;

Section steel beam 3 is welded for channel-section steel or I-steel;

Bottom profiled sheet is ribbed plate, and thickness is 0.8-1.0mm;

The thickness of overlaminate shape steel plate 7 is 0.5-1.0mm.

Bottom profiled sheet layer 4 and the side steel plate of overlaminate shape steel plate 7 or steel fabric sheet are closed.

Can be provided with protective layer 8 in the upper end of overlaminate shape steel plate 7 according to relevant requirement, protective layer 8 can be waterproof material With the mixed layer of heat-insulation layer, to meet the power conservation requirement of cold district.

The composition of sandwich of layers 5 is foam concrete, and raw material is cement and foaming agent, comprcssive strength 0.5-15MPa;Heat conduction system Number is between 0.08-0.3w/ (m K);Sound absorbing power 0.09-0.19%.In the present invention, sandwich of layers 5 uses non-combustible inorganic material Material, comprcssive strength is high, and absorbability is good, cheap, compares the insulation material of other decks, and its comprehensive cost reduces 20- 50%;The water absorption rate of sandwich of layers 5 is relatively low, and water repelling property is strong, has relatively independent CAB and good overall performance;The end Laminated-type steel plate layer 4 and overlaminate shape steel plate 7 are self waterproofing material, replaceable waterproof layer;Sandwich of layers 5 is contained within a large amount of bubble, Genus polyporus material, sound absorbing power is 5-6 times of normal concrete, has sound insulation function.It addition, on bottom profiled sheet layer 4 Preferably smear fireproof coating, the in addition non-combustible material of sandwich of layers 5, can fully prevent fires.Function above meets assembled transformer station room The requirement of end face.

The construction method for assembled roof of transformer substation face of the present invention comprises the steps:

1) installation at high altitude platform is assembled;Such as, it is intended to assemble two layers of steel construction, the two layers of reserved equipment first general allusion quotation set Hoisting platform, as the installation at high altitude platform in the assembled roof of transformer substation face of the present invention, carries out secondary assembling;Test after assembling Its bearing capacity and stability, can carry out the test of necessity, it is ensured that follow-up step is carried out safely, and convenient operation;

2) grid structure 1 and rack rest layer 2 are installed on installation at high altitude platform, according to the slope requirement of design, regulation The height of each rack rest;

3) arranged type girder steel 3, is directly welded to connect steel main beam and shaped steel secondary beam, the bottom of rack rest layer 2 Structure and grid structure 1 use high-strength bolt compact siro spinning technology, form fore-and-aft plane grid.In the installation that inspection grid structure is overall Size and axial location qualified after, require and drawing position according to design, by rack rest layer 2 superstructure and section steel beam 3 times Portion's structure carries out electric arc welding, welds for angle seam, guarantees weldquality during operation, should meet design and related specifications requirement, make whole Body structure is maintained in approximately the same plane;

4) installing bottom layer profiled sheet layer 4 on section steel beam 3, piece overlap joint between adjacent bottom profiled sheet;

5) side steel plate or the steel fabric sheet of bottom profiled sheet layer 4 closes, and welds built-in fitting at bottom profiled sheet 6;

6) concrete use is pumped into the end face of bottom profiled sheet layer 4, and natural curing molding, forms sandwich of layers 5;

7) the overlaminate shape steel plate 7 of connection built-in fitting 6 is laid;

8) protective layer 8 is directly laid at overlaminate shape steel plate 7.

In step 1) first carry out preparation of construction before, material sorting placement will be used needed for structure, and carry out base set dress.So After, ground is made rack driveaway operation interface, carries out the combination of each parts.

Step 2) in bolts between grid structure 1 and rack rest.

Step 6) described concrete with after being pumped into 24 hours, watering maintenance more than 7 days under field conditions (factors).

In the present invention, the piece of expansion joint, expansion joint position and bottom profiled sheet layer 4 can be cut according to field demand Stagger in position, and embedding sealing cream in expansion joint.

When use the present invention for assembled roof of transformer substation face time, grid structure 1 is as main force structure, intensity Height, material is light, can go up people;Compared with the structure in conventional roof face, more simplify, and for coordinating the operation of assembled deck, execute Work method is simple, and globality is strong, and function is complete, and only sandwich of layers 5 one Rotating fields just can concentrate replacement heat insulation layer, fire prevention Layer, waterproof layer and noise reduction layer etc., and overall structure is levelling without material and looks for slope.It addition, the technique of the present invention is simple, cost Low, get final product globality sheet material customized, it is possible to cast-in-place existing paving, be suitable at assembled roof of transformer substation face and a new generation's construction of transformer substation Popularization and application in technology.

The construction method for assembled roof of transformer substation face of the present invention uses the construction of three-step-march monoblock type, convenient fast Victory, that reduces on-the-spot scaffold builds face;Can effective reduction of erection time, meet the requirement for deck of the assembled transformer station.

The foregoing is only the preferable embodiment of the present invention, not in order to limit the present invention, all the present invention's Any amendment, equivalent and the improvement etc. made within spirit and principle, should be included within the scope of the present invention.

Claims (9)

1. one kind be used for assembled roof of transformer substation face, it is characterised in that described for assembled roof of transformer substation face from lower to On include successively: grid structure (1), rack rest layer (2), section steel beam (3), bottom profiled sheet layer (4), sandwich of layers (5), pre- Embedded part (6) and overlaminate shape steel plate (7);
Wherein, grid structure (1) is the flat board network of some elementary cells arrangement, and elementary cell is by six roots of sensation chord member The hexagonal pyramid constituted with 4 nodes, the arrangement mode of described elementary cell is positive and negative alternate arrangement;
Rack rest layer (2) is assembled by the rack rest of multiple differing heights, is arranged on the joint of the upper end of grid structure (1) On point, and for deck look for slope component;
Section steel beam (3) is arranged on the upper end of rack rest layer (2), including steel main beam and shaped steel secondary beam;
Bottom profiled sheet layer (4) is arranged on the upper end of section steel beam (3), is made up of polylith bottom profiled sheet, and sandwich of layers (5) sets Putting the upper end at bottom profiled sheet layer (4), overlaminate shape steel plate (7) is arranged on the upper end of sandwich of layers (5), sandwich of layers and on The junction of laminated-type steel plate (7) is provided with built-in fitting (6).
The most according to claim 1 for assembled roof of transformer substation face, it is characterised in that node is bolted spherical node;
Section steel beam (3) is channel-section steel or I-steel is welded;
Bottom profiled sheet is ribbed plate, and thickness is 0.8-1.0mm;
The thickness of overlaminate shape steel plate (7) is 0.5-1.0mm.
The most according to claim 1 for assembled roof of transformer substation face, it is characterised in that bottom profiled sheet layer (4) Close with side steel plate or the steel fabric sheet of overlaminate shape steel plate (7).
The most according to claim 1 for assembled roof of transformer substation face, it is characterised in that in overlaminate shape steel plate (7) Upper end be provided with protective layer (8).
The most according to claim 1 for assembled roof of transformer substation face, it is characterised in that the composition of sandwich of layers (5) is Foam concrete, raw material is cement and foaming agent, comprcssive strength 0.5-15MPa;Heat conductivity 0.08-0.3w/ (m K) it Between;Sound absorbing power 0.09-0.19%.
6., according to the construction method for assembled roof of transformer substation face according to any one of claim 1-5, its feature exists In, comprise the steps:
1) installation at high altitude platform is assembled;
2) grid structure (1) and rack rest layer (2) are installed on installation at high altitude platform, according to the slope requirement of design, regulation The height of each rack rest;
3) arranged type girder steel (3), are directly welded to connect steel main beam and shaped steel secondary beam;
4) at upper installing bottom layer profiled sheet layer (4) of section steel beam (3), piece overlap joint between adjacent bottom profiled sheet;
5) side steel plate or the steel fabric sheet of bottom profiled sheet layer (4) closes, and welds built-in fitting at bottom profiled sheet (6);
6) concrete use is pumped into the end face of bottom profiled sheet layer (4), and natural curing molding, forms sandwich of layers (5);
7) the overlaminate shape steel plate (7) of connection built-in fitting (6) is laid;
8) protective layer (8) is directly laid at overlaminate shape steel plate (7).
Construction method for assembled roof of transformer substation face the most according to claim 6, it is characterised in that step 2) in Between grid structure (1) and rack rest with bolts.
Construction method for assembled roof of transformer substation face the most according to claim 6, it is characterised in that step 6) institute State concrete with after being pumped into 24 hours, watering maintenance more than 7 days under field conditions (factors).
Construction method for assembled roof of transformer substation face the most according to claim 6, it is characterised in that according to scene Demand cutting expansion joint, expansion joint position staggers with the piece position of bottom profiled sheet layer (4), and embeds close in expansion joint Envelope cream.
CN201610755020.9A 2016-08-29 2016-08-29 A kind of for assembled roof of transformer substation face and construction method thereof CN106284793A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109610681A (en) * 2018-11-16 2019-04-12 上海宝冶集团南京建筑有限公司 A kind of high-performance masonry cavity wall

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Publication number Priority date Publication date Assignee Title
WO2000034596A1 (en) * 1998-12-08 2000-06-15 A/S Dansk Tagkassette A roof construction element
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Application publication date: 20170104